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EN 1.5024 Steel vs. EN 1.8151 Steel

Both EN 1.5024 steel and EN 1.8151 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.5024 steel and the bottom bar is EN 1.8151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 470
200 to 540
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Tensile Strength: Ultimate (UTS), MPa 670 to 1930
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 50
50
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.2
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.4
1.8
Embodied Energy, MJ/kg 19
25
Embodied Water, L/kg 45
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 69
24 to 70
Strength to Weight: Bending, points 22 to 45
22 to 45
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 20 to 58
20 to 58

Alloy Composition

Carbon (C), % 0.42 to 0.5
0.4 to 0.5
Chromium (Cr), % 0
0.4 to 0.8
Iron (Fe), % 96.7 to 97.6
95.9 to 97.2
Manganese (Mn), % 0.5 to 0.8
0.6 to 0.9
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 1.5 to 2.0
1.3 to 1.7
Sulfur (S), % 0 to 0.025
0 to 0.025
Vanadium (V), % 0
0.1 to 0.2

Comparable Variants